How to export mp3 format ?

[chenweigh]

No description provided.

[Kagami]

Check out https://github.com/Kagami/vmsg

[octavn]

Recorder.js does not support encoding audio to mp3.

For mp3 check out the vmsg and WebAudioRecorder.js libraries.

[kevinjfq]

When you call this:
rec.exportWAV([callback][, type])
just pass 'audio/mpeg' as the 'type' arg.

[kevinjfq]

Hmmm, I think I lied. I told it 'audio/mpeg' but I think the file generated is still a WAV file. :(

[kevinjfq]

Octavian Naicu answered in detail on stackoverflow:
"When you send audio/mpeg instead of audio/wav to exportWAV() it just (erroneously) changes the MIME type of the wav Blob, it does not magically turn on mp3 encoding - you need the LAME mp3 encoding library for that. The tutorial you're quoting is incorrect in this regard. I've recently written an up to date Recorder.js tutorial. – Octavian Naicu"
https://stackoverflow.com/questions/32138865/how-to-record-audio-in-format-of-mp3-m4a-javascript-recorder-js